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Jafari H, Namazi H. pH-sensitive biosystem based on laponite RD/chitosan/polyvinyl alcohol hydrogels for controlled delivery of curcumin to breast cancer cells. Colloids Surf B Biointerfaces 2023; 231:113585. [PMID: 37837689 DOI: 10.1016/j.colsurfb.2023.113585] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
In this study, a pH-responsive hydrogels based on laponite rapid dispersion (Lap®)/chitosan (CS)/polyvinyl alcohol (PVA) designed and was used for controlled delivery of the anticancer drug curcumin (CUR). First, it was accomplished by dissolving CUR in Lap® dispersion under the influence of the pH of the environment. Then, in the presence of Lap®CUR cross-linking was incorporated between CS and PVA polymers. The structural features of Lap®CUR/CS@PVA hydrogels are characterized using FT-IR, XRD, SEM/EDS, TEM, TGA, Zeta potential, and XPS. The in vitro drug release profiles confirmed a pH-responsive controlled release of CUR in acidic pH for all hydrogels. During 12 h, the cumulative release of CUR from Lap®CUR/0.1CS@PVA hydrogel was 27.9% and 12.3%, at pH 5.5 and 7.4, respectively. While during three days the release rate reached 48.5% and 18.5%. The CUR release kinetic from hydrogels also suggests that the kinetic data well fitted to the Korsmeyer-Peppas, diffusion-controlled and Fickian diffusion. Furthermore, in vitro cytotoxicity and DAPI staining study clearly illustrated that Lap®CUR/0.1CS@PVA hydrogel had lower cytotoxicity than CUR against MDA-MB 231 cancer cells, which confirmed the controlled release of drug through hydrogels. Meanwhile, in vitro hemolysis, antioxidant and antibacterial tests revealed that the prepared hydrogels have good blood compatibility, excellent antioxidant properties, and antibacterial activity. Based on the obtained results, the designed hydrogels could be potentially applied as pH-controlled drug delivery systems for cancer therapy.
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Affiliation(s)
- Hessam Jafari
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran
| | - Hassan Namazi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, P.O. Box 51666, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Science, Tabriz, Iran.
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2
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Guajardo N. Immobilization of Lipases Using Poly(vinyl) Alcohol. Polymers (Basel) 2023; 15:polym15092021. [PMID: 37177168 PMCID: PMC10181104 DOI: 10.3390/polym15092021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 04/22/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Lipases are very versatile enzymes because they catalyze various hydrolysis and synthesis reactions in a chemo-, regio-, and stereoselective manner. From a practical point of view, immobilization allows the recovery and stabilization of the biocatalyst for its application in different types of bioreactors. Among the various support options for immobilizing lipases is polyvinyl alcohol (PVA), which, when functionalized or combined with other materials, provides different characteristics and properties to the biocatalyst. This review analyzes the multiple possibilities that PVA offers as a material to immobilize lipases when combined with alginate, chitosan, and hydroxypropylmethylcellulose (HPMC), incorporating magnetic properties together with the formation of fibers and microspheres. The articles analyzed in this review were selected using the Scopus database in a range of years from 1999 to 2023, finding a total of 42 articles. The need to expand knowledge in this area is due to the great versatility and scaling possibilities that PVA has as a support for lipase immobilization and its application in different bioreactor configurations.
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Affiliation(s)
- Nadia Guajardo
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Santiago 8940000, Chile
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Norouzi F, Pourmadadi M, Yazdian F, Khoshmaram K, Mohammadnejad J, Sanati MH, Chogan F, Rahdar A, Baino F. PVA-Based Nanofibers Containing Chitosan Modified with Graphene Oxide and Carbon Quantum Dot-Doped TiO 2 Enhance Wound Healing in a Rat Model. J Funct Biomater 2022; 13:jfb13040300. [PMID: 36547560 PMCID: PMC9784316 DOI: 10.3390/jfb13040300] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Electrospun nanofibrous constructs based on nanoparticles and biopolymers have recently been used in tissue engineering because of their similarity to the extracellular matrix in nature. In this study, electrospun chitosan-carbon quantum dot-titanium dioxide-graphene oxide (CS-CQD-TiO2-GO) nanofibrous mats were synthesized for use as wound dressings by the electrospinning method. To increase the biodegradation rate and water resistance, the fabricated nanofibrous mats were cross-linked. SEM images showed a uniform and coherent structure of CS-CQD-TiO2-GO nanocomposites and CS-CQD-TiO2-GO electrospun nanofibers mats. FTIR analysis, XRD pattern, SEM mapping, and EDS spectrum demonstrate the accuracy of the synthesis as well as the elemental and chemical structure of the nanofibrous mat. The water contact angle indicated that the nanofibrous mat had a hydrophilic property, which is essential for controlling wound exudates. The tensile strength and elongation tests showed that the nanofibrous mat has suitable mechanical properties for wound dressing, including significant flexibility and strength. Interestingly, antimicrobial testing illustrated that the fabricated nanofibrous mat had antibacterial activity against Gram-negative and Gram-positive bacteria. Appropriate cell viability and cytocompatibility of treated mouse fibroblast NIH3T3 cells with the nanofibrous mat were determined using an MTT assay. The animal study results confirmed the proper potential of the nanofibrous mat in wound dressing applications.
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Affiliation(s)
- Fatemeh Norouzi
- Department of Biology, Nourdanesh Institute of Higher Education, Meymeh, Isfahan 8351765851, Iran
| | - Mehrab Pourmadadi
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran 1439957131, Iran
- Correspondence: (F.Y.); (A.R.); (F.B.)
| | - Keyvan Khoshmaram
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Javad Mohammadnejad
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Mohammad Hossein Sanati
- Department of Biology, Nourdanesh Institute of Higher Education, Meymeh, Isfahan 8351765851, Iran
| | - Faraz Chogan
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Abbas Rahdar
- Department of Physics, Faculty of science, University of Zabol, Zabol 538-98615, Iran
- Correspondence: (F.Y.); (A.R.); (F.B.)
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
- Correspondence: (F.Y.); (A.R.); (F.B.)
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Effect of glycerol, sunflower oil, and glucose on the physico-chemical and mechanical properties of chitosan/polyvinyl alcohol-based films. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03803-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Zhang H, Feng M, Fang Y, Wu Y, Liu Y, Zhao Y, Xu J. Recent advancements in encapsulation of chitosan-based enzymes and their applications in food industry. Crit Rev Food Sci Nutr 2022; 63:11044-11062. [PMID: 35694766 DOI: 10.1080/10408398.2022.2086851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Enzymes are readily inactivated in harsh micro-environment due to changes in pH, temperature, and ionic strength. Developing suitable and feasible techniques for stabilizing enzymes in food sector is critical for preventing them from degradation. This review provides an overview on chitosan (CS)-based enzymes encapsulation techniques, enzyme release mechanisms, and their applications in food industry. The challenges and future prospects of CS-based enzymes encapsulation were also discussed. CS-based encapsulation techniques including ionotropic gelation, emulsification, spray drying, layer-by-layer self-assembly, hydrogels, and films have been studied to improve the encapsulation efficacy (EE), heat, acid and base stability of enzymes for their applications in food, agricultural, and medical industries. The smart delivery design, new delivery system development, and in vivo releasing mechanisms of enzymes using CS-based encapsulation techniques have also been evaluated in laboratory level studies. The CS-based encapsulation techniques in commercial products should be further improved for broadening their application fields. In conclusion, CS-based encapsulation techniques may provide a promising approach to improve EE and bioavailability of enzymes applied in food industry.HighlightsEnzymes play a critical role in food industries but susceptible to inactivation.Chitosan-based materials could be used to maintain the enzyme activity.Releasing mechanisms of enzymes from encapsulators were outlined.Applications of encapsulated enzymes in food fields was discussed.
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Affiliation(s)
- Hongcai Zhang
- College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Veterinary Bio-tech Key Laboratory, Shanghai, China
| | - Miaomiao Feng
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yapeng Fang
- College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Wu
- College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuan Liu
- College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yanyun Zhao
- Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, USA
| | - Jianxiong Xu
- College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Veterinary Bio-tech Key Laboratory, Shanghai, China
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Vassiliadi E, Aridas A, Schmitt V, Xenakis A, Zoumpanioti M. (Hydroxypropyl)methyl cellulose-chitosan film as a matrix for lipase immobilization: Operational and morphological study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Efficient Synthesis of Biodiesel Catalyzed by Chitosan-Based Catalysts. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1155/2021/8971613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Catalysts play an important role in the preparation of biodiesel. It is of great significance to study catalysts with high efficiency, low cost, and easy preparation. Compared with the homogeneous catalyst system, the heterogeneous catalyst is easy to separate and has a better catalytic effect. In heterogeneous catalysts, supports and preparation methods have important effects on the dispersion of active centers and the overall performance of catalysts. However, the supports of existing solid catalysts have defects in porosity, structural uniformity, stability, and specific surface area, and the preparation methods cannot stabilize covalent bonds or ionic bonds to bind catalytic sites. Considering the activity, preparation method, and cost of the catalyst, biomass-based catalyst is the best choice, but the specific surface area of the biomass-based catalyst is relatively low, the distribution of active centers is uneven, and it is easy to lose. Therefore, the hybrid carrier of biomass-based catalyst and other materials can not only improve the specific surface area but also make the distribution of active centers uniform and the catalytic activity better. Based on this, we summarized the application of chitosan hybrid material catalysts in biodiesel. The preparation, advantages and disadvantages, reaction conditions, and so on of chitosan-based catalysts were mainly concerned. At the same time, exploring the effects of different types of chitosan-based catalysts on the preparation of biodiesel and exploring the process technology with high efficiency and low consumption is the focus of this paper.
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Serbezeanu D, Bercea M, Butnaru M, Enache AA, Rîmbu CM, Vlad‐Bubulac T. Development of histamine reinforced poly(vinyl alcohol)/chitosan blended films for potential biomedical applications. J Appl Polym Sci 2021. [DOI: 10.1002/app.51912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Diana Serbezeanu
- Department of Polycondensation and Thermally Stable Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi Romania
| | - Maria Bercea
- Department of Natural Polymers, Bioactive and Biocompatible Materials “Grigore T. Popa” University of Medicine and Pharmacy Iasi Romania
| | - Maria Butnaru
- Department of Natural Polymers, Bioactive and Biocompatible Materials “Grigore T. Popa” University of Medicine and Pharmacy Iasi Romania
| | | | - Cristina Mihaela Rîmbu
- Department of Public Health Faculty of Veterinary Medicine “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine Iasi Romania
| | - Tăchiță Vlad‐Bubulac
- Department of Polycondensation and Thermally Stable Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi Romania
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de Castro MDC, Garcia PS, Andrade MM, Grossmann MVE, Simões BM, Samulewski RB, Baron AM. Lipase immobilization on biodegradable film with sericin. Biotechnol Appl Biochem 2021; 69:660-667. [PMID: 34053116 DOI: 10.1002/bab.2141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 02/24/2021] [Indexed: 11/06/2022]
Abstract
An ecofriendly and low-cost film composed by cassava starch, polyvinyl alcohol, and sericin blend (CS-PVA-SS) was synthesized, characterized, and applied as a novel support for Botryosphaeria ribis EC-01 lipase immobilization by enzyme-film-enzyme adsorption. Film revealed thickness between 230 and 309 μm and higher flexibility and malleability in comparison with film without SS. Based on p-nitrophenyl palmitate hydrolysis reaction, the activity retention of immobilized lipase was 987%. For optimal conditions, the yield in ethyl oleate was 95% for immobilized enzyme. Maximum yield was obtained at 49°C, molar ratio oleic acid:ethanol of 1:3, 1.25 g lipase film or 50 U (1.03 ± 0.03 mg protein) and 30 h. Even after seven cycles of use, immobilized lipase showed 52% reduction in ester yield. Biodegradable and biorenewable film is a promising material as a support to immobilize lipases and application in biocatalysis.
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Affiliation(s)
- Michael da Conceição de Castro
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | - Patrícia Salomão Garcia
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | - Milena Martins Andrade
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | | | - Bruno Matheus Simões
- Departamento de Ciência e Tecnologia de Alimentos, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Rafael Block Samulewski
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | - Alessandra Machado Baron
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
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Different strategies for the lipase immobilization on the chitosan based supports and their applications. Int J Biol Macromol 2021; 179:170-195. [PMID: 33667561 DOI: 10.1016/j.ijbiomac.2021.02.198] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 01/15/2023]
Abstract
Immobilized enzymes have received incredible interests in industry, pharmaceuticals, chemistry and biochemistry sectors due to their various advantages such as ease of separation, multiple reusability, non-toxicity, biocompatibility, high activity and resistant to environmental changes. This review in between various immobilized enzymes focuses on lipase as one of the most practical enzyme and chitosan as a preferred biosupport for lipase immobilization and provides a broad range of studies of recent decade. We highlight several aspects of lipase immobilization on the surface of chitosan support containing various types of lipase and immobilization techniques from physical adsorption to covalent bonding and cross-linking with their benefits and drawbacks. The recent advances and future perspectives that can improve the present problems with lipase and chitosan such as high-price of lipase and low mechanical resistance of chitosan are also discussed. According to the literature, optimization of immobilization methods, combination of these methods with other techniques, physical and chemical modifications of chitosan, co-immobilization and protein engineering can be useful as a solution to overcome the mentioned limitations.
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Jawale PV, Bhanage BM. Synthesis of propyl benzoate by solvent-free immobilized lipase-catalyzed transesterification: Optimization and kinetic modeling. Bioprocess Biosyst Eng 2020; 44:369-378. [PMID: 32997184 DOI: 10.1007/s00449-020-02448-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 09/14/2020] [Indexed: 01/11/2023]
Abstract
The present study aimed to analyze reaction kinetics and mechanism for the synthesis of propyl benzoate in solvent-free conditions. Lipase was immobilized on Hydroxypropyl methylcellulose (HPMC) and polyvinyl alcohol (PVA) polymer blend by entrapment method. Among different lipases immobilized on a support, Candida cylindracea (CCL) showed excellent activity. Systematic studies were done to optimize the reaction conditions. The activation energy was found to be 16.2 kcal/mol for immobilized CCL. Kinetic parameters were calculated, which depicted that propyl benzoate synthesized using immobilized CCL followed the ternary complex model in which propanol inhibits lipase activity at higher concentrations. Recyclability of the catalyst was checked up to four catalytic cycles and 40% retention of activity was observed up to the fourth cycle. Finally, the applicability of developed protocol to synthesize various alkyl benzoates was explored.
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Affiliation(s)
- Priyanka V Jawale
- Department of Chemistry, Institute of Chemical Technology, Mumbai, 400019, India
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12
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Effect of plasticizer and surfactant on the properties of poly(vinyl alcohol)/chitosan films. Int J Biol Macromol 2020; 164:2100-2107. [PMID: 32758608 DOI: 10.1016/j.ijbiomac.2020.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/28/2020] [Accepted: 08/01/2020] [Indexed: 12/11/2022]
Abstract
The objective of this study was to develop eco-friendly films based on poly(vinyl alcohol) (PVA) and chitosan (CTS) with the addition of plasticizer (glycerol or sorbitol) and surfactant (cocamidopropyl betaine). The properties of the obtained polymeric films were determined by contact angle measurements, attenuated total reflection infrared spectroscopy (ATR-FTIR), atomic force microscopy (AFM), mechanical tests, and moisture content analysis. The results indicated that four-component blends had high surface hydrophilicity and surface roughness due to the presence of the surfactant. Glycerol incorporation into PVA/CTS blends resulted in higher flexibility and greater water absorption capacity of the three- and four-component polymeric blends compared with these blends with sorbitol. By contrast, the addition of the surfactant to the materials is essential for their application in personal hygiene products as disposable wipes.
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Ding J, Zhang R, Ahmed S, Liu Y, Qin W. Effect of Sonication Duration in the Performance of Polyvinyl Alcohol/Chitosan Bilayer Films and Their Effect on Strawberry Preservation. Molecules 2019; 24:molecules24071408. [PMID: 30974792 PMCID: PMC6479888 DOI: 10.3390/molecules24071408] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/05/2019] [Accepted: 04/08/2019] [Indexed: 11/16/2022] Open
Abstract
In this study, we fabricated polyvinyl alcohol (PVA)/chitosan (CS) bilayer films by casting and investigated the effects of preparation conditions and CS content (2, 2.5, or 3 wt.%) on the ability of these films to preserve packaged strawberries. The best performance was achieved at a CS loading of 2.5 wt.% (ultrasound time, 25 min); the strain and stress values were 143.15 ± 6.43% and 70.67 ± 0.85 MPa, respectively, oxygen permeability was 0.16 ± 0.08 cm²·m²·day-1·MPa-1, water vapor permeability was 14.93 ± 4.09 g·cm-1·s-1·Pa-1, and the shelf life of fresh strawberries packaged in the PVA/CS 2.5 wt.% bilayer film was determined to be 21 days at 5 ± 2 °C and a relative humidity of 60 ± 5%. Treatment with PVA/CS bilayer films prevented the decrease in the firmness of strawberries during storage (21 days). The evaluated physicochemical parameters (weight loss, decay, firmness, titratable acidity, soluble solid content, ascorbic acid content, and color) indicated that treatment with PVA/CS bilayer films led to better maintenance of the fruit quality. We believe that our study makes a significant contribution to literature because it paves the way to the fabrication of smart packaging materials and facilitates the commercialization of fresh strawberries as an important health food.
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Affiliation(s)
- Jie Ding
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
- College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China.
| | - Rong Zhang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
| | - Saeed Ahmed
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
| | - Yaowen Liu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA.
| | - Wen Qin
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China.
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Use of Statistical Design Strategies to Produce Biodegradable and Eco-Friendly Films from Cashew Gum Polysaccharide and Polyvinyl Alcohol. MATERIALS 2019; 12:ma12071149. [PMID: 30970591 PMCID: PMC6479310 DOI: 10.3390/ma12071149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/01/2019] [Accepted: 04/05/2019] [Indexed: 02/02/2023]
Abstract
This work reports the production and characterization of biodegradable and eco-friendly films based on cashew gum polysaccharide (CGP) and polyvinyl alcohol (PVA), using the statistical design strategy. Results show that CGP/PVA films are pH stimuli-responsive, allowing their use in a magnitude of biotechnological applications. The morphological and dimensional characterization evidences a positive influence of polymers in the dimensional properties. In addition, the microstructural analysis shows that films have different morphologies depending on the content of polymers and oxidant agent. On the other hand, the thickness and light transmission values are positively influenced by CGP and PVA and negatively influenced by NaIO₄. Results from mechanical properties show that the traction force is positively influenced by NaIO₄, while the elongation is only affected by the PVA concentration. In summary, considering the morphological, optical and mechanical properties of the CGP/PVA films it is possible to suggest their utilization in different fields as promising packaging materials or matrices for immobilization and/or encapsulation of biomolecules.
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Guadarrama-Fernández L, Novell M, Blondeau P, Andrade FJ. A disposable, simple, fast and low-cost paper-based biosensor and its application to the determination of glucose in commercial orange juices. Food Chem 2018; 265:64-69. [DOI: 10.1016/j.foodchem.2018.05.082] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 10/16/2022]
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16
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Chen X, Wu S, Yi M, Ge J, Yin G, Li X. Preparation and Physicochemical Properties of Blend Films of Feather Keratin and Poly(vinyl alcohol) Compatibilized by Tris(hydroxymethyl)aminomethane. Polymers (Basel) 2018; 10:polym10101054. [PMID: 30960979 PMCID: PMC6403771 DOI: 10.3390/polym10101054] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/18/2018] [Accepted: 09/19/2018] [Indexed: 11/16/2022] Open
Abstract
Blend films of feather keratin (FK) and synthetic poly(vinyl alcohol) (PVA) that were compatibilized by tris(hydroxymethyl)aminomethane (Tris) were successfully prepared by a solution-casting method. The scanning electron microscopy (SEM) results showed that a phase separation occurred in the FK/PVA/Tris blended system. Analysis by Fourier transform infrared spectroscopy indicated that the main interactions between the three components were hydrogen bonds. In addition, X-ray diffraction analysis showed that the FK/PVA/Tris blend films were partially crystalline. The barrier properties, mechanical properties, and contact angles of the FK/PVA/Tris films were investigated to determine the effects of the PVA and Tris concentrations. More specifically, upon increasing the PVA content, the elongation at break, the hydrophilicity, and the oxygen barrier properties were enhanced. However, at a constant PVA content, an increase in the Tris content caused the oxygen permeability and the contact angle to decrease, while the tensile strength, elongation at break, and oxygen barrier properties were enhanced. These results indicated that the mechanical properties and gas resistance of the FK/PVA/Tris blend films could be successfully improved using the method described herein, confirming that this route provided a convenient and promising means to prepare FK plastics for practical applications.
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Affiliation(s)
- Xunjun Chen
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Shufang Wu
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Minghao Yi
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Jianfang Ge
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Guoqiang Yin
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Xinming Li
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
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Liu Y, Wang S, Lan W. Fabrication of antibacterial chitosan-PVA blended film using electrospray technique for food packaging applications. Int J Biol Macromol 2018; 107:848-854. [DOI: 10.1016/j.ijbiomac.2017.09.044] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/30/2017] [Accepted: 09/14/2017] [Indexed: 12/11/2022]
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18
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Fabrication and Testing of PVA/Chitosan Bilayer Films for Strawberry Packaging. COATINGS 2017. [DOI: 10.3390/coatings7080109] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Feng CH, Liu YW, Makino Y, García Martín JF, Cummins E. Evaluation of modified casings and chitosan-PVA packaging on the physicochemical properties of cooked Sichuan sausages during long-term storage. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13451] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chao-Hui Feng
- College of Food Science; Sichuan Agricultural University; No. 46, Xinkang Road Yucheng District, Ya’an 625014 Sichuan China
- Graduate School of Agricultural and Life Science; The University of Tokyo; 1-1-1, Yayoi, Bunkyo-ku Tokyo 113-8657 Japan
| | - Yao-Wen Liu
- College of Food Science; Sichuan Agricultural University; No. 46, Xinkang Road Yucheng District, Ya’an 625014 Sichuan China
| | - Yoshio Makino
- Graduate School of Agricultural and Life Science; The University of Tokyo; 1-1-1, Yayoi, Bunkyo-ku Tokyo 113-8657 Japan
| | - Juan Francisco García Martín
- Department of Chemical Engineering; Faculty of Chemistry, University of Seville, Campus Reina Mercedes; 41012 Seville Spain
| | - Enda Cummins
- School of Biosystems & Food Engineering; Agriculture and Food Science; University College Dublin; Belfield Dublin 4 Ireland
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A stimuli-responsive and bioactive film based on blended polyvinyl alcohol and cashew gum polysaccharide. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:927-34. [DOI: 10.1016/j.msec.2015.09.064] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/04/2015] [Accepted: 09/14/2015] [Indexed: 11/18/2022]
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21
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Ben Halima N. Poly(vinyl alcohol): review of its promising applications and insights into biodegradation. RSC Adv 2016. [DOI: 10.1039/c6ra05742j] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Poly(vinyl alcohol) is a promising class of synthetic polymer biodegradable under a two-step metabolism consisting of an oxidation and hydrolysis.
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22
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23
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Improvement of starch digestion using α-amylase entrapped in pectin-polyvinyl alcohol blend. BIOMED RESEARCH INTERNATIONAL 2015; 2015:145903. [PMID: 25949991 PMCID: PMC4407515 DOI: 10.1155/2015/145903] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 03/21/2015] [Accepted: 03/22/2015] [Indexed: 11/18/2022]
Abstract
Polyvinyl alcohol (PVA) and pectin blends were used to entrap α-amylase (Termamyl) using glutaraldehyde as a cross-linker. The effect of glutaraldehyde concentration (0.25, 0.5, 0.75, 1.0, and 1.25%) on the activity of the immobilized enzyme and rate of enzyme released was tested during a 24 h period. Characteristics of the material, such as scanning electron microscopy (SEM), tensile strength (TS), elongation, and rate of dissolution in water (pH 5.7), ruminal buffering solution (pH 7.0), and reactor containing 0.1 mol L−1 sodium phosphate buffer (pH 6.5), were also analyzed. SEM results showed that the surfaces of the pectin/PVA/amylase films were highly irregular and rough. TS values increased as a function of glutaraldehyde concentration, whereas percentage of elongation (%E) decreased. Pectin/PVA/amylase films presented similar values of solubility in the tested solvents. The material obtained with 0.25% glutaraldehyde performed best with repeated use (active for 24 h), in a phosphate buffer reactor. By contrast, the material obtained with 1.25% glutaraldehyde presented higher performance during in vitro testing using an artificial rumen. The results suggest that pectin/PVA/amylase is a highly promising material for biotechnological applications.
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Moreira BR, Batista KA, Castro EG, Lima EM, Fernandes KF. A bioactive film based on cashew gum polysaccharide for wound dressing applications. Carbohydr Polym 2015; 122:69-76. [PMID: 25817644 DOI: 10.1016/j.carbpol.2014.12.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 12/17/2014] [Accepted: 12/24/2014] [Indexed: 11/16/2022]
Abstract
This work presents the development of a new bioactive material for wound therapeutics which may play a dual role of modulate metallo proteinases activity while prevents infection blocking out pathogenic microorganisms and foreign materials. A CGP/PVA film was activated by covalent immobilization of trypsin. Results from biocompatibility test revealed that PDL fibroblasts grown on the surface of CGP/PVA and the high amount of viable cells proved absence of cytotoxicity. Trypsin immobilized onto CGP/PVA film remained 100% active after 28 days stored dried at room temperature. In addition, CGP/PVA-trypsin film could be used for 9 cycles of storage/use without loss of activity. After immobilization, trypsin retained its collagenolytic activity, indicating this material as a promising material for wound dressing applications.
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Affiliation(s)
- Bruna R Moreira
- Laboratório de Química de Polímeros, DBBM, ICB, Universidade Federal de Goiás, Goiânia, Brazil
| | - Karla A Batista
- Laboratório de Química de Polímeros, DBBM, ICB, Universidade Federal de Goiás, Goiânia, Brazil.
| | - Elisandra G Castro
- Laboratório de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, Brazil
| | - Eliana M Lima
- Laboratório de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, Brazil
| | - Kátia F Fernandes
- Laboratório de Química de Polímeros, DBBM, ICB, Universidade Federal de Goiás, Goiânia, Brazil.
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Moreira B, Batista K, Fernandes K. Imobilization of trypsin in films of PVA/CGP. BMC Proc 2014. [PMCID: PMC4211095 DOI: 10.1186/1753-6561-8-s4-p217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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26
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Batista KA, Purcena LL, Alves GL, Fernandes KF. A pectin–lipase derivative as alternative copolymer for lipase assay. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Badgujar KC, Dhake KP, Bhanage BM. Immobilization of Candida cylindracea lipase on poly lactic acid, polyvinyl alcohol and chitosan based ternary blend film: Characterization, activity, stability and its application for N-acylation reactions. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.06.009] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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